AI测评：修复查询不删除的试题sql拼接问题

byzs-course/src/main/resources/mapper/questionnaire/QuestionnaireMapper.xml

@@ -20,7 +20,7 @@
         WHERE
             qc.deleted = 0 AND q.deleted = 0 AND cq.deleted = 0
             <if test="questionnaireId != null">
-                q.id = #{questionnaireId}
+                AND q.id = #{questionnaireId}
             </if>
             <if test="cqQuestType != null">
                 AND cq.cq_quest_type = #{cqQuestType}